The Brittany Battery Energy Storage System is a 7,000kW energy storage project located in Brittany, France.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2020.


The Brittany Battery Energy Storage System is being developed by Neoen.

Contractors involved

Neoen is the developer of Brittany Battery Energy Storage System.

Additional information

Neoen has won contracts for 13 MW of storage capacity in France under the call for long-term tenders organised by French power transport and distribution operator RTE (Réseau de Transport d’Électricité). The capacity provided by Neoen will be split between two projects. The first, winner of the 2012-2027 tender round, will consist of lithium ion batteries providing 7 MW of power, and will be located in Brittany; the second, forming part of the 2022-2028 tender round, will have 6 MW of capacity.

About Neoen

Neoen develops, builds, finances and operates green power plants.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.